Mitra, SomakCook, SteffanŠvrček, VladimirBlackley, Ross A.Zhou, WuzongKovač, JanezCvelbar, UrosMariotti, DavideImproved
Optoelectronic Properties of Silicon Nanocrystals/Polymer Nanocomposites
by Microplasma-Induced
Liquid ChemistryWe have demonstrated that three-dimensional
(3D) surface engineering
of silicon nanocrystals (SiNCs) by direct current microplasma processing
in water with poly­(3,4-ethylenedioxythiophene) doped by poly­(styrenesulfonate)
(PEDOT:PSS) can lead to nanocomposites with enhanced optoelectronic
performance. Specifically, we have successfully shown improved photoluminescence
properties of SiNCs inside water-based solution. The results also
confirm that SiNCs become stable in water with potential application
impact for biorelated applications. We have also shown that the microplasma
processing in the presence of the polymer helps prevent the fast oxidation
process over a longer period of time in comparison to the unprocessed
sample. Furthermore, the assessment of transport properties confirmed
the improvement of exciton dissociation after microplasma surface
engineering; this can have direct implications for higher performance
optoelectronic devices including solar cells.microplasma processing;application;PEDOT;poly;microplasma surface engineering;SiNC;performance optoelectronic devices2013-11-07